OpDX™ High Performance Butterfly Valve

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The OpDX High Performance Butterfly Control Valve uses a pressure-assisted seating concept to achieve bi-directional bubble-tight shutoff while maintaining a low breakout torque requirement. Available in ANSI Class 150 to 600 and 2” to 36”, the OpDX has a characterized disc enabling throttling.

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  • Metal & Soft Seating Available
  • Available in metal (ANSI Class IV) or soft seat (ANSI Class VI)
  • Eccentric disc lifts off of the seat to prevent wear
  • Accurate throttling achieved with modified parabolic geometry machined into the seat
  • Rugged and lightweight flangeless wafer body
  • MSS SP-67 face-to-face permits shorter flange bolting than ball or eccentric plug valves, increasing safety and reducing possibility of leakage
Control Valve Type

Sizes (NPS)

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Body Materials


Disc & Shaft Materials

17-4 pH, 440 Stainless Steel, CF8M Stainless Steel + Hard Chrome, Nitronic

Seat Materials

Inconel, Kel-F, PEEK, PTFE, Stainless Steel

Pressure Class (ASME/ANSI)

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Shutoff Class (ANSI)

End Connections


Operating Temperature

Flow Characteristic


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Standards & Norms

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Technical Library

Technical Brochures
Product Instruction Manuals

Compatible with

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